6.1 Medium
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:A/AC:L/Au:N/C:N/I:N/A:C
0.002 Low
EPSS
Percentile
58.4%
The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | xen | < 4.0.1-2 | xen_4.0.1-2_all.deb |
Debian | 11 | all | xen | < 4.0.1-2 | xen_4.0.1-2_all.deb |
Debian | 999 | all | xen | < 4.0.1-2 | xen_4.0.1-2_all.deb |
Debian | 13 | all | xen | < 4.0.1-2 | xen_4.0.1-2_all.deb |